Ponche de Frutas (Fruit Punch)

3 oranges

juiced

3 lemons

juiced

½ pound seedless green grapes

halved

½ pound plums

pitted and chopped into small bite-size pieces

1 fresh pineapple - peeled

cored and chopped into small bite-size pieces

1 cup white sugar

4 cups strong brewed black tea

chilled

4 cups crushed ice